The Sacrifice is long, loaded with longeurs (viewers fight over which bits are boring, just as they fight over what the movie means), and rarely rational and – except for the journey-into-a-soul superstructure – almost never linear. Despite those reservations, it is a magnificent experience: watching it, you can feel Tarkovsky's life ebbing, but with vitality, dignity, candour, concern and, most of all, artistry – "with hope and confidence."